Be careful what you belive from an (obviosuly disgruntled) person who has had no operational experience in who nows how many years.
First of all, the "unlock" codes are 6 digits. Second NO ONE (and I mean absolutely no one, not even the president) will ever know the entire code
until the decision to launch. (All nuclear-related codes are split knowledge to the highest levels).
What Mr. Blair is probably talking about (although it was written in extremely poor detail) is the launch code that must match from the launch
control center to the missile. What this code is is pretty much moot, as it is stored in it's entirety in a mechanical code unit in the capsule. It
is however encrypted/decrypted, so all 0's would not be transmited as all 0's and therefore would be just as secure (agianst unauthorized launch
from someone other than the capsule) as anything else.
If Mr. Blair actually ever new the entire unlock code, I can assure you he would have spent some quality time in Ft. Leavenworth.


